GB1502394A - Device for manipulating a blank for a forging machine - Google Patents

Device for manipulating a blank for a forging machine

Info

Publication number
GB1502394A
GB1502394A GB22973/75A GB2297375A GB1502394A GB 1502394 A GB1502394 A GB 1502394A GB 22973/75 A GB22973/75 A GB 22973/75A GB 2297375 A GB2297375 A GB 2297375A GB 1502394 A GB1502394 A GB 1502394A
Authority
GB
United Kingdom
Prior art keywords
blank
die
gripping
arm
pivotable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB22973/75A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saab Bofors AB
Original Assignee
Bofors AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bofors AB filed Critical Bofors AB
Publication of GB1502394A publication Critical patent/GB1502394A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/08—Accessories for handling work or tools
    • B21J13/10—Manipulators

Abstract

1502394 Grippers BOFORS AB 23 May 1975 [7 June 1974] 22973/75 Heading B8H [Also in Division B3] A blank transfer device for a forging machine comprises a movable frame connected to a pivotable arm 22 and carrying a buffer 8, 9 for bearing against the upper surface of a forging die and at least two claw members 3 which are movable under an edge of a blank lying on the die and which can be raised relative to the buffer 8, 9 to lift the blank from the die whereby the force required to free the blank from the die is transferred to the die by the buffer 8, 9. The pivotable arm 22 is provided with two pairs of gripping jaws 5-8 each provided with a blank gripping claw 3 which is movable upwardly against spring bias (28) (Fig. 5a, not shown), by jacks (27). The maximum span of each gripping jaw 5-8 is determined by an adjustable eccentric 17 and the jaws 5-8 of each pair are movable towards each other by an hydraulic cylinder 18. The forged blank, e.g. a crankshaft, is supported by the gripping claws 3 in recesses in plates 15. The arm 22 is vertically adjustable and pivotable in a horizontal plane relative to an arm 41 which is in turn pivotable about a column 40 by an hydraulic motor 44. In operation, the device is used to transfer a blank between a conveyer 37, a drop hammer 36 and a trimming press 38. The forging die at the drop hammer 36 is provided with recesses for accommodating the gripping claws 3, Fig. 4a, the movement of which may be initiated when contacts provided on two buffers 8, 9 contact the forging die.
GB22973/75A 1974-06-07 1975-05-23 Device for manipulating a blank for a forging machine Expired GB1502394A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7407506A SE392826B (en) 1974-06-07 1974-06-07 DEVICE FOR APPLYING OR REMOVING A HEATED SUBJECT IN THE EVENT OF A HONOR

Publications (1)

Publication Number Publication Date
GB1502394A true GB1502394A (en) 1978-03-01

Family

ID=20321358

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22973/75A Expired GB1502394A (en) 1974-06-07 1975-05-23 Device for manipulating a blank for a forging machine

Country Status (6)

Country Link
US (1) US4012938A (en)
JP (1) JPS5133368A (en)
DE (1) DE2525284A1 (en)
FR (1) FR2273607A1 (en)
GB (1) GB1502394A (en)
SE (1) SE392826B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102059316A (en) * 2010-11-26 2011-05-18 天津市天锻压力机有限公司 High-accuracy railhead forging hydraulic machine

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4727996A (en) * 1983-06-13 1988-03-01 Amca International Corp. Variable grip lifting mechanism
US5713233A (en) * 1996-08-30 1998-02-03 Sifco Custom Machining Company Vane adjustment machine
US6196044B1 (en) 1999-11-19 2001-03-06 Hms Products Co. Press transfer bar-finger support
DE102005033767A1 (en) * 2005-07-15 2007-01-18 Müller Weingarten AG Device for manipulating workpieces during forging, with a gripper mechanism that can be adjusted to be either pliable or rigid, comprises rollers that advance along contact surfaces to put gripper arms in the rigid position

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2677342A (en) * 1954-05-04 Work removing apparatus
GB564208A (en) * 1943-02-25 1944-09-18 Wellman Smith Owen Eng Co Ltd Improvements in apparatus for stripping ingots from moulds
US2811266A (en) * 1953-05-21 1957-10-29 Udal John Davy Means for transferring work pieces to or from a cutting or shaping press
US3010587A (en) * 1957-09-20 1961-11-28 Richard G Hollinger Workpiece transfer mechanism
US2940791A (en) * 1959-02-25 1960-06-14 Aluminium Lab Ltd Apparatus for breaking and lifting lining bodies
DE1137175B (en) * 1959-03-05 1962-09-27 Maschf Augsburg Nuernberg Ag Stripper crane with universal stripper tongs for pressing and pulling blocks from molds
GB1166093A (en) * 1965-12-22 1969-10-01 Chepos Zd Y Chemickeho A Potra Hydraulic Ingot Stripper
US3718216A (en) * 1969-04-01 1973-02-27 Bliss Co Forming press system and workpiece handling and transfer apparatus therefor
US3651957A (en) * 1970-03-02 1972-03-28 Motorola Inc Chip packaging and transporting apparatus
US3620095A (en) * 1970-09-03 1971-11-16 Nasa Mechanically actuated triggered hand
US3731822A (en) * 1970-12-24 1973-05-08 Hartman M W Manuf Co Inc Foundry mold jacket and weight shifter
US3741517A (en) * 1971-02-09 1973-06-26 Texaco Inc Subterranean clamping mechanism for submarine wells
US3760956A (en) * 1971-08-23 1973-09-25 Burch Controls Inc Industrial robot
US3867849A (en) * 1972-08-09 1975-02-25 Tokico Ltd Revolution movement driving apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102059316A (en) * 2010-11-26 2011-05-18 天津市天锻压力机有限公司 High-accuracy railhead forging hydraulic machine

Also Published As

Publication number Publication date
DE2525284A1 (en) 1975-12-18
SE7407506L (en) 1975-12-08
SE392826B (en) 1977-04-25
JPS5133368A (en) 1976-03-22
FR2273607A1 (en) 1976-01-02
US4012938A (en) 1977-03-22

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee